Electric-cable attachment.



J. A. SANDFORD, JR. ELECTRICCABLE ATTACHMENT.

APPLICATION FILED FEB. 14, 1913.

Patented Feb. 6, 1917.

Fig. 4

A; ATTORNEY:

' ject of my invention is to provide an insulator 16 engages.

JOSEPH A. SANDFORD, JR., OF EAST LIVERPOOL, OHIOFASSIGNOR TO THE R. THOMAS AND SONS COMPANY, OF EAST LIVERPOOL, OHIO,

A CORPORATION OF OHIO.

I ELECTRIC-CABLE ATTACHMENT.

Specification of Letters Patent.

' Application filed February 14, 1913. Serial No. 748,440.

To all whom it may concern:

Be it known that I, JosnPi-rA. S'iirvnroao, Jr., a citizen of the United States of America, and residing in the city of East Liverpool, in the county of Columbiana and State ofv ()hio, have invented a certain new and useful Improvement in Electric-CableAttachments, of which the following is a specification. p

My invention. relates to electric cable attachments and particularly to attachments for use with .strain insulator supports of high-tension electric cable lines. The obattachment of improved type which at the same time is readily manufactured and installed.

In the accompanying drawings,

Figure lis a broken side elevation of an attachment embodying my invention in one form;

Fig.2 is an inverted plan "view of the same; I

tachment on the line 33, Fig. 1; I

Fig. 4 is a side elevation of this attachment as installed in a high tension line;

avhieh is substantially alined with the wirereceiving end, is

provided with an eye 14 which the hook -15 of the terminal strain Strengthening ribs 17, preferably in channel form, 'pxtend from the eye-14 toward the middle'of the body, but terminate at a point such that they may not interfere with the cable 12 as it passes to, the jumper loop 18. A clamping plate 19 is preferably provided which overlies the grooved end of'th'eclamp and is shaped to eotiperate with the latter, being moved into clamping position by the nuts 20 on bolts 21 which pass through lugs 22, 23 perforated in register on both sides of the wire-re ceiving grooves.

Intermediate the ends of the attachment Fig. 3 is a cross section through the at -fl- .end of the clamp takes.

.ing in alinement eye portion, and

body an arm 24 is formed to guide the cable from the clamp to its jumper loop 18. This arm has its base at the proper and flares downward on a gradual curve so that the cable may not be injured by a sharp bend at this webs 25, 26 are formed on this guide arm to properly position and retain the cable. The upper web25 joins the lower edge of the arm and forms an open trough .in which the cable lies. The web 26, at the lower end of the arm, joins the other edge of the arm and thus forms an oppositely faced open trough which serves to keep the cable down in proper position. f The rounded lip-27 finishes the end of the web 26 so that no sharp edge presented. .7

which might injure the cable-is The webs are spaced apart to afford. ing 27 which permits the cable to be slightly bent down at'this point during adjustment beneath the web26.

I The construction described presents the an openadvantageover clamps of this type in which a umper guide arm is provided, in that the clamp plate 19 engages that portion of the cable passing through the clamp which lies in alinement with the long eable'span and the axis of the strain insulators. Thus the portion of the cable which is deflected through the guide arm 24 to form a jumper loop to thenext span,

is entirely relieved.

from the strain of the span and is under sub-- 'stantially no in urious stress at the bends in the cable as is the case when the clamp is located on the deflecting arm. Iturthermore, the present construction makesit possible, as'illustrated-in Fig. 7. to make the guide arm 28 of such len th that should the cable be brought up taut beneath the lower lip 27' of the guide arm, the portion of the cable which has formed the jumper loop, will be held out of contact with the edges of the insulators and danger of short-circuiting when the insulators are wet, eliminated.

It is unimportant. just what form the eve Thus as shown in Figs. 5 and 6, a single eye 29 instead of a pair of perforated wings. may be employed. Various other modifications of detail will readily suggest themselves.

'I claim as my invention end of the clamp point. Retai ning 1. A device of the character described hava clamping portion and an between .them a deflecting guide arm at an angle to the body of the clamping portion and a portion having means for attaching the device to .a suspension insulator, in combination with a deflecting arm rigid with said device and having means to freely engage the jumper loop of the cable, said means comprising oppositely faced guide webs extending from the upper and lower margins of said arm and spaced longitudinally apart thereon.

In testimony whereof I-have signed my name to this specification, in the presence of 25 two subscribing witnesses. i JOSEPH A. SANDFORD, JR.

Witnesses:

RALPH R. ORR,

LAUREN or. S., BLooR.

clamp to deflect and guide the cable gripped by the clamp, together with oppositely faced guide webs on said deflecting arm engaging the cable on its upper and lower surfaces.

2. A device of the character described having in alinement a clamping portion and an eye portion, and between them a deflecting guide arm at an angle to the body of the clamp to deflect and guide the cable gripped by the clamp, together with oppositely faced guide webs spaced longitudinally apart on said-deflecting arm.

3. A cable jumper clamp of the. character described, having in alinement a cable 

